-- Eccentric Concentric, right -- wondered what difference it makes if you join and turn your work vs. working with the right side always facing you.
Well, one thing is that you get a straight joining "seam," which is very apparent in this hat because the color at the beginning of some rounds is not the same as the color at the end of the round.
Another difference is that you get a slightly raised appearance for stitches worked on the wrong-side rounds.
I think the disadvantage is that you need to pay more attention when you're turning between rounds. There's something meditative about working a hat with the right side always facing you, one round after another after another . . . .